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Finding the Fourth Proportional to 486,030.75, 670,754.69 and 271,175.50

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Solution

The fourth proportional to 486,030.75, 670,754.69 and 271,175.50 is: 374,240.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,030.75 : 670,754.69 = 271,175.50 : x
  2. Step 2: Convert to fraction form
    486,030.75/670,754.69 = 271,175.50/x
  3. Step 3: Cross multiply
    486,030.75x = 670,754.69 × 271,175.50
  4. Step 4: Simplify right side
    486,030.75x = 181,892,238,438.10
  5. Step 5: Solve for x
    x = 181,892,238,438.10/486,030.75
  6. Step 6: Final answer
    x = 374,240.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.